LISTEN: States, DOJ Argue Whether Trump's Travel Ban Should Stay Suspended : The Two-WayPresident Trump's order temporarily barring refugees and some visa holders from entering the U.S. is on pause. Now three judges are considering whether to put it back into effect.

A three-judge panel of the 9th U.S. Circuit Court of Appeals had tough questions Tuesday for both sides arguing over the future of President Trump's executive order barring refugees and citizens of seven majority-Muslim countries from entering the United States.

Arguing for the administration, August Flentje, special counsel to the assistant attorney general, urged the judges to stay a temporary restraining order issued by District Judge James L. Robart of Seattle. His order last week put the Trump travel ban on hold.

Flentje argued that the plaintiffs, the states of Washington and Minnesota, did not have standing to challenge the president's action because the executive order was "well within the president's power."

That led to a skeptical question from Judge Michelle Friedland, who asked, "Are you arguing, then, that the president's decision in that regard is unreviewable?"

The attorney for the states challenging the travel ban also faced a grilling.

Noah Purcell, solicitor general for the state of Washington, opened by saying that it's the judiciary's role to check abuses by the executive branch. "But the president is asking this court to abdicate that role here, to reinstate the executive order without meaningful judicial review and to throw this country back into chaos, " he said.

Judge Richard Clifton wondered whether the states could really prove that Trump's ban amounted to an attempt to ban all Muslims from entering the country.

"I'm not entirely persuaded by the argument if only because the seven countries encompass only a small percentage of Muslims ...," said Clifton. "I have trouble understanding why we're supposed to infer religious animus when in fact the vast majority of Muslims would not be affected as residents of those nations."

Purcell responded that "to prove religious discrimination we do not need to prove that this order harms only Muslims, or that it harms every Muslim."

The legal arguments lasted just over an hour. They were conducted over the phone since the three judges preside in three different states.

In his closing statement, Flentje, perhaps sensing that the court leaned away from the administration's position, argued that the temporary restraining order on the president's travel ban was too broad and he urged the judges "to stay the injunction or to limit it to the presentation of the state of Washington."

The 9th U.S. Circuit Court of Appeals will hear arguments Tuesday evening over whether President Trump's travel ban should remain on hold or go back into effect.

Trump's executive order temporarily barred visa holders from seven majority-Muslim countries, as well as all refugees, from entering the country. It was signed on Jan. 27 and quickly challenged by an array of lawsuits.

One of those cases resulted in a temporary restraining order, blocking the ban — for now — from going into effect. It's that restraining order, not the ban as a whole, that lawyers will be arguing over Tuesday.

The arguments before a three-judge panel will be held by telephone at 6 p.m. ET (3 p.m. PT), and you can listen live online. Here are a few things to know before the arguments get going:

The White House denies that this amounts to a "Muslim ban," as Trump called for during the presidential election. But all seven of the listed countries are majority Muslim. The order calls for the eventual prioritization of refugee claims from people of "minority religions" in their country of origin — and in an interview Trump said that Christians from the Middle East would be prioritized.

On Jan. 30, Washington became the first state to sue the administration, arguing that the order is discriminatory and violates the Constitution as well as federal law. (The lawsuit is one of many challenging the travel ban.)

The Department of Justice asked the 9th U.S. Circuit Court of Appeals to immediately reinstate the ban. The court refused to immediately intervene but asked the states and the DOJ to make more arguments for and against the restraining order.

Both sides have filed briefs to try to make their case and will be presenting them again in oral arguments Tuesday night.

What's at stake Tuesday?

The appeals court will not decide the overall legality or constitutionality of Trump's travel ban. The only thing under consideration Tuesday is the temporary suspension of the travel ban.

If the court upholds the temporary restraining order, then the ban will continue to not be enforced as the court case moves forward. If the court sides with the U.S. government, the ban will go back into effect for now — and the case against the order will still move forward.

On the law and policy blog Just Security, Georgetown law professor Marty Lederman — who served in the Justice Department under President Barack Obama — notes that the court's decision might not actually be that exciting.

"Just so that everyone's expectations are not unduly raised (and then dashed)," he writes, there's "a very real possibility" that the court won't consider the merits of the case at all.

A temporary restraining order can't usually be appealed, as the government acknowledges. The DOJ argues that it is able to appeal this one, based on technical reasons involving the difference between a temporary restraining order and a preliminary injunction.

Lederman says the judges might well focus on that procedural distinction — whether it can be appealed in the first place — instead of other elements of the case.

What are the arguments on each side?

Aside from the procedural element (which relies on riveting questions like what counts as an adversary hearing, and how long the TRO will be in effect), the two sides are arguing over who is more likely to win the overall case over Trump's travel ban. The likelihood of winning is a factor in determining whether a temporary restraining order is appropriate.

The DOJ cites the president's broad authority on immigration issues as a reason the government is likely to win this case, eventually. The states, meanwhile, say they'll win, based on their evidence that the travel ban was designed to discriminate on the basis of religion and violates the right to due process.

Then there's the question of "irreparable harm." Washington state originally asked for the restraining order because it argued the travel ban was actively harming its residents. The federal government, meanwhile, argues that suspending the ban is causing harm by violating the separation of powers and exposing citizens to risk, and also because it amounts to "judicial second-guessing" of the president's judgment on national security. (The state says the temporary restraining order just restores the status quo from before the ban, and that the DOJ's argument "makes no sense.")

The DOJ also argues that even if it were appropriate, the temporary restraining order should have been imposed more narrowly, rather than nationwide — while the states say a nationwide halt was necessary to protect residents who might travel through a port of entry anywhere in the country.

Who are the judges who will decide?

The arguments on each side will be presented to a three-judge panel of the 9th Circuit: William Canby Jr., Richard Clifton and Michelle T. Friedland.

Canby was appointed by Jimmy Carter, Clifton by George W. Bush and Friedland by Obama.

What happens next?

As the appeals court considers the DOJ's request to reimpose the executive order, the case continues to move forward at the district level.

A host of other lawsuits challenging the executive order are also unfolding across the country — The Hill reports that there are more than 50 such lawsuits brought by state attorneys general, religious groups and individuals.

Eventually, one of the cases might well make it before the U.S. Supreme Court. Bob Ferguson, the attorney general of Washington state, told NPR's Michel Martin he sees that as "entirely possible."

As NPR's Nina Totenberg has reported, Senate Democrats have signaled that the executive order might factor into confirmation hearings for Judge Neil Gorsuch, Trump's nominee for the court's open seat, as they weigh his position on the legality and constitutionality of the travel ban.